Boiler.



W. 1. LlNTGN.

BOFLER.

APPucAHoN HLED 0cT.l9.19:2.

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County Hudson anal To all fwfzom may Gemeen:

Be it known liet l; WILLIAM J. LXNTON, e subject fi His Mjesy the King of Great Britain5 and :i iesiflen' of Jersey lityfin 'the Seite oi' ANew Jersey, new and useful lob of which lie followliave invented. ceitain piovements in loileis, ing is e speeiieeioo. A

This im'eiiioii reloes o boilers oi: lle class knows as Water-tube boilers, and perticulerly eo lie-,Lt bype oi Weeirsube boiler in which e eeies of ebree, or perhaps four, transverse drums or headers Yconnected uw gelber by banks of Water-tubes in e closed triangulei, or quaiilaierel, cycle mo inted Wibin e. suitable easing and the Walzen admitted to one of lie fliums oi' lieficlei's the upper Teer poi-oii of tile casing, is caused to eireulel/e liisif, lownwsnL thence foi'waircl smal tlien sipwaiei and backward from one drum o1" lieadei to enolier in suceessioii by' `elle iiemes enel hol: pi'odue-s of combustion which ere conelaeecl ilii'ougli the easing against ille drums oi* headers and between and along the eoiiiieeing banks of weeetubos in lle opposiie direction. le boilers ef this type es heretofore colostructed, 'the steam is disengaged in mm oil fiom elle upper pari; of the single upper drumg one of two upper drums, which is eoiiiieeteel up in end oims a of the Weer-eireliietiixg sysem. The eapid cii'eulzition. of the -feeig however, causes mi ebulliioii die weeiin lie lower of lie sie?fikdsewfsgiiig fliimi and? es a result9 oro-aimed is saturated Wili moiswithin lie easing er but not of ein, ifvliicli we- Jvity on a level with the boiler and to i; "i le.:

'maier which ille' engsggimg i during these cliumm also comm.,

eoui'es of l combination siifl part-ieu- Seria! 'o., 726,613.

Section on the line 2 2 Oi' il mining one specifib embodiment of .my 1my proveniente.

'Referring be lie drawings, l is the usuel boiler casing of any suiable construceion.

The front Waii .Z of 'Elie easing is provided;

with the eusomary fire and asl?. doors and additional floors conveniently located to give access to the interior of the boiler. The grate 3 is mounted in lie'usufil manner between elle front casing Woll. and i'eei oiiclffe- Well or ebu'emenl; Ll. Suitebiy mounted Within elle boiler casing are thetbi'ee usuel iums, a stemi-diseiigeging imm 5 in upper reni' por'ioii the easing, a mud. dimm G locali-eel diieealy below the steamdiseiigogiig drum in the iea lower bofioil of lthe casing, and al water drum 7 ai; iie from of the boiler e level inaermeclieze ha of Jalie two fiiums, which three 'drums ere connecefl iogelieij iii e closed Minn-gula? cycle by boules of Weiher" tubes, the verieal 'lobes 8, :forwardiy end upwadly inclined tubes 9, ami ieaiwai'cliy end upwardly inclined aubesl The Jiaiiies and het products combustion sie con ducted the iepot over the giiee lu'ougli Jelle boiler to the outle flue il, es indicated by ai'iows, by means of the life arch l2, bridge-well e, baiies 13, lil, l5, 16, l? 1S, and projecting ledge 19j while 'Clie watera admitted to the steine-disengaging drum 5 ilirougli lle usuel feed-water iiile 20, is 'inheieby caused o circulate in lie opposilge diiceelioiij libel; is to say, ioin the steemdiseng'eging drum 5 to mel through the mud cli-um 6 and. thence to mid lliiougli the water (iiuiii i' and. back to 'ehe seamlisengeging mj all in the old and well-known manner.

rlhe additional drum 21, which in effect constitutes u steam-dome or reservoir and is provided with steombutlets 22 is located in the front of lille easing ou substantially the seme level as or slightly above the steam-n flisenguging l1-um o with its lower side some three or four inches below lie center line of the latef. These two drums are eonneeted 'all ill-eil upper sides, above the baflie-plalge l5 :zml the water level of the boiler, by 'the steam-times or pipes 23. Their lower sides :i1-e also connected by :i Water-pipe -lj lo- Larmes Water-circulating system outside the path of the steam therein, means for employing the hot gases which pass through the boiler to heat said additional drum and its connecting steam-superheating tubes, means it'or4 maintaining a supply of water in said additional drum, and means for protecting the 'steamsuperheating tube connections from injury by the heat whenthe boiler Iis rst started.

4. A water-tube boiler comprising, in addition to the usual drums and connecting water-tubes forming a closed water-circulating system, a drum 'which is located partly below andl partly above .the normal level of the water in the boiler and is connected with Ithe boiler above the water level by steamsuperheating tubes and below the water' level solely by a connection therewith at a point outside the path of the steam therein.

5. A water-tube boiler comprising, in addition to the usual rear steam-disengaging and mud drums, front water-drum, and connecting water-tubes, forming a closed watercirculating system, a drum which is located in the front of the boiler casing with its lower side slightly below the normal level of the water in the boiler and is connected above the water level of the boiler with the rear steam-disengaging drum by steamsuperheat'ing tubes and below the water level of the boiler solely by a. water connection with the lower side of one of the said reary drums.

6. A water-tube boiler comprising, in ad dition to the usual rear-steam-disengaging and mud drums, front watendrum, and connecting water-tubes, forming a closed wa ter-circulating system, a drum which is lo.-

cated partly below and partly above the normal level of the water ,in the boiler and has "no direct connection with the front waterdrum, steamfsuperheating tubes which connect the said additional drum with the boiler above the normal water level therein, and a Water-pipe which connects the said additional drum at a point between its lower side and the normal water level of the boilerwith the lower side of' one of the said rear drums.

7. A water-tube boiler comprising, in addition to the usual drums and connecting water-tubes forming a closed water-circulating system, a steam-dome, means vfor maintaining within the lower part of the steam-domel a. quiescent body of water supplied thereto through a connection with the boiler at some point outside the ath of the steam therein, means for trans erring the steam generated within the boiler to the upsteam-dome as fast as it is collected therein. 8. A water-tube boiler comprising, in'ad-v dition tothe usual rear steam-disengaging and mud drums, front water-drum, andconnecting water-tubes, forming a closedwatercirculating system, a drum which is located in the front of the boiler casingpartly below and partly above the normal level of the water in the boiler and has no direct connection with the front water-drum, a waterpipe which connects the said additional drum at a pointbetween itslower side and the normal water level of the` boiler with the lower side of one of the said rear drums of the boiler at apoint outside the path of the steam therein, means for transferring steam from the upper part of the said rear steam' disengaging drum to the upper part of the said additional drum, means for superheating the steam during its transfer to and while in the said additional drum,and means for withdrawing ythe superheated steam from the said additional drum as fast as it collects therein.

9. A water-tube boiler comprising, in addition-to the usual rear steam-disengaging and mud drums, front water-drum, and connecting water-tubes, forming a closed water-circulating system, an undivided drum which is located in the front of the boiler casing slightly below and largely above the normal level of the water in the boiler and has no direct connection with the said front water-drum,Y means for maintaining within the lower part of the saidadditional drum a quiescent body of water suppliedfrom the lower part of one of the said rear drums outside the the upper part of the said additionaldrum, means for utilizing the hot gases which pass through the boiler to heat the steam while it is. bein 'transferred from the said rear steam-d1sengaging drum to the said addi-` ath of the steam therein, means for trans erring steam from the upper part .of the said rear steam-dlsengaging drum to 

